Wilferd Madelung on Hazrat Ali
Professor of Arabic at Oxford University
q "In face of the fake Umayyad claim to legitimate sovereignty in Islam as God's Vicegerents on earth, and in view of Umayyad treachery, arbitrary and divisive government, and vindictive retribution, they came to appreciate his honesty, his unbending devotion to the reign of Islam, his deep personal loyalties, his equal treatment of all his supporters, and his generosity in forgiving his defeated enemies."
[The succession to Muhammad: a study of the early caliphate, Cambridge, 1997, pp. 309-310]